Détail de l'auteur
Auteur C. T. Downs |
Documents disponibles écrits par cet auteur (10)
Ajouter le résultat dans votre panier Affiner la recherche![]()
Article
J. O. Wirminghaus, Auteur ; C. T. Downs, Auteur ; M. R. Perrin, Auteur ; C. T. Symes, AuteurBreeding biology and nesting requirements of Cape Parrots in their natural habitat and in captivity were investigated. Few nests were found, suggesting that nest-sites are limiting, and that the parrots have specific nesting requirements. Nests [...]![]()
Article
Diet of the Cape Parrot, Poicephalus robustus, in Afromontane forests in KwaZulu-Natal, South Africa
J. O. Wirminghaus, Auteur ; C. T. Downs, Auteur ; C. T. Symes, Auteur ; M. R. Perrin, AuteurCope Parrots, Poicephalus robustus, occur in Podocarpus (yellow-wood) Afromontane forest patches from the Eastern Cape to southern KwaZulu-Natal, South Africa, They are food nomadics moving locally between forest patches in search of food, and o[...]![]()
Article
D. J. Pain, Auteur ; T. L. F. Martins, Auteur ; M. Boussekey, Auteur ; S. H. Diaz, Auteur ; C. T. Downs, Auteur ; J. M. M. Ekstrom, Auteur ; S. Garnett, Auteur ; J. D. Gilardi, Auteur ; D. McNiven, Auteur ; P. Primot, Auteur ; S. Rouys, Auteur ; M. Saoumoe, Auteur ; C. T. Symes, Auteur ; S. A. Tamungang, Auteur ; J. Theuerkauf, Auteur ; D. Villafuerte, Auteur ; L. Verfailles, Auteur ; P. Widmann, Auteur ; I. D. Widmann, AuteurWild parrots represent one of the greatest commercial interests in the legal trade in wild birds. Although it is difficult to quantify, there is a considerable illegal trade in wild parrots. Thirty-six per cent of the world's parrot species are [...]![]()
Article
S. Soobramoney, Auteur ; C. T. Downs, Auteur ; N. J. Adams, AuteurGeographic variation among four Common Fiscal subpopulations along an altitudinal gradient in South Africa demonstrated significant variation of 13 morphological features and 38 skeletal characters. Common Fiscals were largest in cooler, less hu[...]![]()
Article
K. Mbatha, Auteur ; C. T. Downs, Auteur ; M. Penning, AuteurNectar passage and digestive tract morphology of two unrelated nectarivorous bird species, the Malachite Sunbird, Nectarinia famoso, and the Black-capped Lory, Lorius Iory, were examined. X-ray techniques were used to determine the gross anatomy[...]![]()
Article
C. T. Symes, Auteur ; J. O. Wirminghaust, Auteur ; C. T. Downs, AuteurPresence data were recorded and analysed for avian bird species in a study of three separate Afromontane Forests in the KwaZulu-Natal Midlands, South Africa. Levels of endemism for South Africa and forest-specificity were investigated. In total,[...]![]()
Article
C. T. Symes, Auteur ; C. T. Downs, Auteur ; S. McLean, AuteurLocal movements of 374 Malachite Sunbirds, Nectarinia famosa, and 124 Gurney's Sugarbirds, Promerops gurneyi, were studied in KwaZulu-Natal over a period of 92 months. It was hypothesized that these nectarivores move in response to seasonal nect[...]![]()
Article
K. M. Calf, Auteur ; C. T. Downs, Auteur ; M. I. Cherry, AuteurCape Sugarbirds are southern African endemics, found in fynbos vegetation of the Western and Eastern Cape Provinces of South Africa, and they feed almost exclusively on the nectar of Protea inflorescences. Breeding male Sugarbirds are highly ter[...]![]()
Article
S. Soobramoney, Auteur ; C. T. Downs, Auteur ; N. J. Adams, AuteurAspects of the foraging behaviour along an altitudinal gradient of four subpopulations (Durban, Merrivale, Estcourt and Harrismith) of colour-banded Common Fiscals (Lanius collaris) were analysed in summer and winter in South Africa. The shrike [...]



